oj.uz

Submission #523559

# Submission time Handle Problem Language Result Execution time Memory
523559 2022-02-07T18:38:13 Z RaresFelix Chessboard (IZhO18_chessboard) C++17
47 / 100
 2000 ms 9764 KB 
#include <vector>
#include <iostream>
#include <climits>

#pragma GCC optimize("Ofast")
#pragma GCC target("avx,avx2,fma")
#define MN 107171
using ll = long long;
using namespace std;
int n, k;

namespace AINT {
    int V[4 * MN];
    bool LZ[4 * MN];
    void clear(int u = 1, int s = 1, int d = n) {
        V[u] = LZ[u] = 0;
        if(s != d)
            clear(u * 2, s, (s + d) /2), clear(u * 2 + 1, (s + d) / 2 + 1, d);
    }
    void prp(int u, int s, int d) {
        if(!LZ[u]) return;
        V[u] = d - s + 1 - V[u];
        LZ[u] = 0;
        if(s != d)
            LZ[u * 2] ^= 1, LZ[u * 2 + 1] ^= 1;
    }
    void update(int l, int r, int u = 1, int s = 1, int d = n) {
        prp(u, s, d);
        if(r < s || d < l) return;
        if(l <= s && d <= r) {
            LZ[u] ^= 1;
            prp(u, s, d);
            return;
        }
        update(l, r, u * 2, s, (s + d) / 2);
        update(l, r, u * 2 + 1, (s + d) / 2 + 1, d);
        V[u] = V[u * 2] + V[u * 2 + 1];
    }
}
vector<pair<int, int>> OP[MN];
ll acopera(int l, int c0) {
    if(l == n) return LLONG_MAX;
    ///c0 = 1 daca coloram primul patrat
    AINT::clear();
    for(int i = 1 + (1 - c0) * l; i <= n; i += 2 * l)
        AINT::update(i, i + l - 1);
    ll re = 0;
    for(int i = 1; i <= n; ++i) {
        for(auto [l, r] : OP[i])
            AINT::update(l, r);
        re += AINT::V[1];
        if(i % l == 0)
            AINT::update(1, n);
    }
    return re;
}

int main() {
    cin.tie(0);
    ios_base::sync_with_stdio(0);
    cin >> n >> k;
    ll re = LLONG_MAX;
    for (int i = 1, a, b, c, d; i <= k; ++i) {
        cin >> a >> b >> c >> d;
        OP[a].emplace_back(b, d);
        OP[c + 1].emplace_back(b, d);
    }
    vector<int> D{1};
    for (int i = 2; i * i <= n; ++i)
        if (i * i == n) D.push_back(i);
        else if (n % i == 0)
            D.push_back(i), D.push_back(n / i);
    for (auto it: D) {
        ll v = acopera(it, 0);
        re = min(re, min(v, 1ll * n * n - v));
    }
    cout << re << "\n";
    return 0;
}

Subtask #1
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2764 KB Output is correct
2 Correct 2 ms 2764 KB Output is correct
3 Correct 2 ms 2764 KB Output is correct
4 Correct 1 ms 2764 KB Output is correct
5 Correct 2 ms 2764 KB Output is correct
6 Correct 2 ms 2764 KB Output is correct
7 Correct 2 ms 2764 KB Output is correct
8 Correct 1 ms 2764 KB Output is correct

Subtask #2
8.0 / 8.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 5572 KB Output is correct
2 Correct 17 ms 3532 KB Output is correct
3 Correct 53 ms 5800 KB Output is correct
4 Correct 37 ms 4180 KB Output is correct
5 Correct 57 ms 5332 KB Output is correct
6 Correct 37 ms 4816 KB Output is correct
7 Correct 15 ms 3400 KB Output is correct
8 Correct 44 ms 4716 KB Output is correct
9 Correct 101 ms 5860 KB Output is correct
10 Correct 50 ms 5068 KB Output is correct

Subtask #3
15.0 / 15.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2764 KB Output is correct
2 Correct 1 ms 2764 KB Output is correct
3 Correct 2 ms 2764 KB Output is correct
4 Correct 3 ms 2764 KB Output is correct
5 Correct 2 ms 2764 KB Output is correct
6 Correct 2 ms 2764 KB Output is correct
7 Correct 3 ms 2844 KB Output is correct
8 Correct 2 ms 2764 KB Output is correct
9 Correct 2 ms 2764 KB Output is correct
10 Correct 2 ms 2780 KB Output is correct
11 Correct 2 ms 2764 KB Output is correct
12 Correct 2 ms 2764 KB Output is correct
13 Correct 3 ms 2764 KB Output is correct
14 Correct 3 ms 2764 KB Output is correct
15 Correct 2 ms 2764 KB Output is correct

Subtask #4
16.0 / 16.0

# Verdict Execution time Memory Grader output
1 Correct 2 ms 2764 KB Output is correct
2 Correct 1 ms 2764 KB Output is correct
3 Correct 2 ms 2764 KB Output is correct
4 Correct 3 ms 2764 KB Output is correct
5 Correct 2 ms 2764 KB Output is correct
6 Correct 2 ms 2764 KB Output is correct
7 Correct 3 ms 2844 KB Output is correct
8 Correct 2 ms 2764 KB Output is correct
9 Correct 2 ms 2764 KB Output is correct
10 Correct 2 ms 2780 KB Output is correct
11 Correct 2 ms 2764 KB Output is correct
12 Correct 2 ms 2764 KB Output is correct
13 Correct 3 ms 2764 KB Output is correct
14 Correct 3 ms 2764 KB Output is correct
15 Correct 2 ms 2764 KB Output is correct
16 Correct 31 ms 3580 KB Output is correct
17 Correct 46 ms 5132 KB Output is correct
18 Correct 98 ms 5068 KB Output is correct
19 Correct 601 ms 4932 KB Output is correct
20 Correct 668 ms 5004 KB Output is correct
21 Correct 43 ms 5060 KB Output is correct
22 Correct 4 ms 2764 KB Output is correct
23 Correct 86 ms 4040 KB Output is correct
24 Correct 97 ms 5096 KB Output is correct
25 Correct 22 ms 3092 KB Output is correct
26 Correct 64 ms 4172 KB Output is correct
27 Correct 125 ms 4884 KB Output is correct
28 Correct 101 ms 5020 KB Output is correct
29 Correct 20 ms 3784 KB Output is correct
30 Correct 5 ms 2892 KB Output is correct

Subtask #5
0 / 23.0

# Verdict Execution time Memory Grader output
1 Correct 95 ms 5572 KB Output is correct
2 Correct 17 ms 3532 KB Output is correct
3 Correct 53 ms 5800 KB Output is correct
4 Correct 37 ms 4180 KB Output is correct
5 Correct 57 ms 5332 KB Output is correct
6 Correct 37 ms 4816 KB Output is correct
7 Correct 15 ms 3400 KB Output is correct
8 Correct 44 ms 4716 KB Output is correct
9 Correct 101 ms 5860 KB Output is correct
10 Correct 50 ms 5068 KB Output is correct
11 Correct 2 ms 2764 KB Output is correct
12 Correct 1 ms 2764 KB Output is correct
13 Correct 2 ms 2764 KB Output is correct
14 Correct 3 ms 2764 KB Output is correct
15 Correct 2 ms 2764 KB Output is correct
16 Correct 2 ms 2764 KB Output is correct
17 Correct 3 ms 2844 KB Output is correct
18 Correct 2 ms 2764 KB Output is correct
19 Correct 2 ms 2764 KB Output is correct
20 Correct 2 ms 2780 KB Output is correct
21 Correct 2 ms 2764 KB Output is correct
22 Correct 2 ms 2764 KB Output is correct
23 Correct 3 ms 2764 KB Output is correct
24 Correct 3 ms 2764 KB Output is correct
25 Correct 2 ms 2764 KB Output is correct
26 Correct 31 ms 3580 KB Output is correct
27 Correct 46 ms 5132 KB Output is correct
28 Correct 98 ms 5068 KB Output is correct
29 Correct 601 ms 4932 KB Output is correct
30 Correct 668 ms 5004 KB Output is correct
31 Correct 43 ms 5060 KB Output is correct
32 Correct 4 ms 2764 KB Output is correct
33 Correct 86 ms 4040 KB Output is correct
34 Correct 97 ms 5096 KB Output is correct
35 Correct 22 ms 3092 KB Output is correct
36 Correct 64 ms 4172 KB Output is correct
37 Correct 125 ms 4884 KB Output is correct
38 Correct 101 ms 5020 KB Output is correct
39 Correct 20 ms 3784 KB Output is correct
40 Correct 5 ms 2892 KB Output is correct
41 Correct 1054 ms 7120 KB Output is correct
42 Correct 201 ms 9668 KB Output is correct
43 Correct 505 ms 9172 KB Output is correct
44 Correct 222 ms 9472 KB Output is correct
45 Correct 113 ms 9764 KB Output is correct
46 Correct 1211 ms 9620 KB Output is correct
47 Correct 132 ms 9140 KB Output is correct
48 Correct 354 ms 9412 KB Output is correct
49 Correct 196 ms 9128 KB Output is correct
50 Execution timed out 2059 ms 9364 KB Time limit exceeded
51 Halted 0 ms 0 KB -

Subtask #6
0 / 30.0

# Verdict Execution time Memory Grader output
1 Correct 1 ms 2764 KB Output is correct
2 Correct 2 ms 2764 KB Output is correct
3 Correct 2 ms 2764 KB Output is correct
4 Correct 1 ms 2764 KB Output is correct
5 Correct 2 ms 2764 KB Output is correct
6 Correct 2 ms 2764 KB Output is correct
7 Correct 2 ms 2764 KB Output is correct
8 Correct 1 ms 2764 KB Output is correct
9 Correct 95 ms 5572 KB Output is correct
10 Correct 17 ms 3532 KB Output is correct
11 Correct 53 ms 5800 KB Output is correct
12 Correct 37 ms 4180 KB Output is correct
13 Correct 57 ms 5332 KB Output is correct
14 Correct 37 ms 4816 KB Output is correct
15 Correct 15 ms 3400 KB Output is correct
16 Correct 44 ms 4716 KB Output is correct
17 Correct 101 ms 5860 KB Output is correct
18 Correct 50 ms 5068 KB Output is correct
19 Correct 2 ms 2764 KB Output is correct
20 Correct 1 ms 2764 KB Output is correct
21 Correct 2 ms 2764 KB Output is correct
22 Correct 3 ms 2764 KB Output is correct
23 Correct 2 ms 2764 KB Output is correct
24 Correct 2 ms 2764 KB Output is correct
25 Correct 3 ms 2844 KB Output is correct
26 Correct 2 ms 2764 KB Output is correct
27 Correct 2 ms 2764 KB Output is correct
28 Correct 2 ms 2780 KB Output is correct
29 Correct 2 ms 2764 KB Output is correct
30 Correct 2 ms 2764 KB Output is correct
31 Correct 3 ms 2764 KB Output is correct
32 Correct 3 ms 2764 KB Output is correct
33 Correct 2 ms 2764 KB Output is correct
34 Correct 31 ms 3580 KB Output is correct
35 Correct 46 ms 5132 KB Output is correct
36 Correct 98 ms 5068 KB Output is correct
37 Correct 601 ms 4932 KB Output is correct
38 Correct 668 ms 5004 KB Output is correct
39 Correct 43 ms 5060 KB Output is correct
40 Correct 4 ms 2764 KB Output is correct
41 Correct 86 ms 4040 KB Output is correct
42 Correct 97 ms 5096 KB Output is correct
43 Correct 22 ms 3092 KB Output is correct
44 Correct 64 ms 4172 KB Output is correct
45 Correct 125 ms 4884 KB Output is correct
46 Correct 101 ms 5020 KB Output is correct
47 Correct 20 ms 3784 KB Output is correct
48 Correct 5 ms 2892 KB Output is correct
49 Correct 1054 ms 7120 KB Output is correct
50 Correct 201 ms 9668 KB Output is correct
51 Correct 505 ms 9172 KB Output is correct
52 Correct 222 ms 9472 KB Output is correct
53 Correct 113 ms 9764 KB Output is correct
54 Correct 1211 ms 9620 KB Output is correct
55 Correct 132 ms 9140 KB Output is correct
56 Correct 354 ms 9412 KB Output is correct
57 Correct 196 ms 9128 KB Output is correct
58 Execution timed out 2059 ms 9364 KB Time limit exceeded
59 Halted 0 ms 0 KB -